Outlook not sending emails1 min read
Outlook Not Sending Emails? Here's How to Fix It
If a message is stuck in your Outbox, it's almost always one of six things: Work Offline is on, the attachment is too big, you've hit a sending rate limit, the mailbox is full, your login has expired, or the outgoing server settings are wrong. Here's how to tell which, in order, with the fix for each.